Amendment
Total N (mg g
-1
dw)
Total C
(mg g
-1
dw)
S
(mg g
-1
dw)
DW* (%)
Molasses, 30%
11.9
278.5
1.5
22.7
Humic acid extract, 100%
11.6
417.1
6.0
3.5
Malt extract, 30%
7.9
389.2
0.9
25.4
* - dry weight
Table 1:
Total nitrogen, carbon and sulphur concentrations in amendments used for pre-treatment of ceramic beads.
